Alert archive / Rhode Island / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 124, NWS Boston/Norton, MA

November 13, 2021Worcester County, Massachusetts; Kent County, Providence County, Rhode Island; Northeastern Connecticut Planning Region, Connecticut

NWS Boston/Norton, MA issued this severe thunderstorm warning at Nov 13, 2021, 5:01 PM EST for Worcester County, Massachusetts; Kent County, Providence County, Rhode Island; Northeastern Connecticut Planning Region, Connecticut. It was in force for 26 min. 5 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Nov 13, 2021, 5:01 PM EST (22:01 UTC)
Expired
Nov 13, 2021, 5:27 PM EST
In force
26 min
Issued by
NWS Boston/Norton, MA
Area
Storm-based polygon
Tornado
Possible
Hail
0.75 in
Wind
60.0 mph

Counties Northeastern Connecticut Planning Region, CT, Worcester County, MA, Kent County, RI, Providence County, RI

The radar

The Boston radar (KBOX), 58 km from the middle of the area, began a volume at 22:01 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Nov 13, 5:05 PM ESTTSTM WND DMGFoster, RITREES AND WIRES DOWN ON JOHNSON ROAD.
Nov 13, 5:05 PM ESTTSTM WND DMGFoster, RINUMEROUS TREES, LIMBS, AND WIRES DOWN ON CUCUMBER HILL ROAD.
Nov 13, 5:05 PM ESTTSTM WND DMGSterling, CTTREE DOWN ON HOUSE ON MAIN STREET
Nov 13, 5:10 PM ESTTSTM WND DMGWebster, MATREE DOWN AND BLOCKING MINE BROOK ROAD AT EVERGREEN ROAD.
Nov 13, 5:20 PM ESTTSTM WND DMGScituate, RITREE AND WIRES DOWN, TELEPHONE POLE SNAPPED IN HALF, ON ROCKY HILL ROAD.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Nov 13, 12:27 PM ESTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 10.0 hours before the alert went out and 142 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Brookhaven, NY at 12:00Z on 2021-11-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 12:00Z on 2021-11-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 14 square meters per square second.1939587897117136Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1435 m above ground
0-6 km bulk shear
82 kt
0-1 km storm-relative helicity
14 m²/s²
0-3 km storm-relative helicity
34 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

484 
WUUS51 KBOX 132201
SVRBOX
CTC015-MAC027-RIC003-007-132300-
/O.NEW.KBOX.SV.W.0124.211113T2201Z-211113T2300Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Boston/Norton MA
501 PM EST Sat Nov 13 2021

The National Weather Service in Boston/Norton has issued a

* Severe Thunderstorm Warning for...
  Northeastern Windham County in northern Connecticut...
  Southeastern Worcester County in central Massachusetts...
  Northwestern Kent County in Rhode Island...
  Providence County in Rhode Island...

* Until 600 PM EST.

* At 501 PM EST, severe thunderstorms were located along a line
  extending from Charlton to Thompson to near Killingly, moving
  northeast at 40 mph.

  HAZARD...60 mph wind gusts and penny size hail.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to trees and power lines.

* Locations impacted include...
  Worcester, Providence, Cranston, Shrewsbury, Coventry, North
  Providence, Johnston, Plainfield, Smithfield, Grafton, Killingly,
  Webster, Southbridge, Auburn, Burrillville, Northbridge, Oxford,
  Uxbridge, Millbury and Charlton.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4166 7181 4168 7184 4188 7193 4210 7208
      4220 7209 4235 7173 4178 7142 4164 7180
TIME...MOT...LOC 2201Z 210DEG 60KT 4215 7197 4197 7184 4179 7181 

TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Smith
2 follow-up statements
006 
WWUS51 KBOX 132214
SVSBOX

Severe Weather Statement
National Weather Service Boston/Norton MA
514 PM EST Sat Nov 13 2021

CTC015-RIC003-132223-
/O.CAN.KBOX.SV.W.0124.000000T0000Z-211113T2300Z/
Windham CT-Kent RI-
514 PM EST Sat Nov 13 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN WINDHAM AND
NORTHWESTERN KENT COUNTIES IS CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 700 PM EST for
Rhode Island.

LAT...LON 4189 7168 4203 7178 4210 7184 4213 7187
      4220 7165 4178 7142 4174 7159
TIME...MOT...LOC 2213Z 270DEG 60KT 4229 7181 4211 7168 4193 7165 

$$

MAC027-RIC007-132300-
/O.CON.KBOX.SV.W.0124.000000T0000Z-211113T2300Z/
Worcester MA-Providence RI-
514 PM EST Sat Nov 13 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM EST
FOR SOUTHEASTERN WORCESTER AND CENTRAL PROVIDENCE COUNTIES...

At 513 PM EST, severe thunderstorms were located along a line
extending from Worcester to Northbridge to near Burrillville, moving
east at 50 mph.

HAZARD...60 mph wind gusts and penny size hail.

SOURCE...Radar indicated.

IMPACT...Expect damage to trees and power lines.

Locations impacted include...
Providence, Cranston, North Providence, Johnston, Smithfield,
Grafton, Burrillville, Northbridge, Oxford, Uxbridge, North
Smithfield, Scituate, Glocester, Blackstone, Sutton, Douglas, Upton,
Mendon and Millville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4189 7168 4203 7178 4210 7184 4213 7187
      4220 7165 4178 7142 4174 7159
TIME...MOT...LOC 2213Z 270DEG 60KT 4229 7181 4211 7168 4193 7165 

TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Smith
337 
WWUS51 KBOX 132227
SVSBOX

Severe Weather Statement
National Weather Service Boston/Norton MA
527 PM EST Sat Nov 13 2021

MAC027-RIC007-132236-
/O.CAN.KBOX.SV.W.0124.000000T0000Z-211113T2300Z/
Worcester MA-Providence RI-
527 PM EST Sat Nov 13 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN WORCESTER AND
CENTRAL PROVIDENCE COUNTIES IS CANCELLED...
    
The storms which prompted the warning have moved out of the area.
Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 700 PM EST for
Rhode Island.

LAT...LON 4189 7168 4203 7178 4210 7184 4213 7187
      4220 7165 4178 7142 4174 7159
TIME...MOT...LOC 2226Z 210DEG 60KT 4248 7166 4230 7153 4212 7150 

$$

Smith

The office that day

Everything else NWS Boston/Norton, MA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Nov 12, 9:39 PM ESTGale WarningBOX29 hr
Nov 13, 4:09 PM ESTSevere Thunderstorm WarningBOXHampden15 min
Nov 13, 4:45 PM ESTSpecial Marine WarningBOX60 min
Nov 13, 5:08 PM ESTTornado WarningBOXBristol24 min
Nov 13, 5:12 PM ESTSevere Thunderstorm WarningBOXBristol, Plymouth44 min
Nov 13, 5:17 PM ESTSevere Thunderstorm WarningBOXBristol, Middlesex, Norfolk, Plymouth, Worcester7 min
Nov 13, 5:21 PM ESTTornado WarningBOXBristol, Norfolk24 min
Nov 13, 5:22 PM ESTSpecial Marine WarningBOX53 min
Nov 13, 5:26 PM ESTSevere Thunderstorm WarningBOXBristol, Middlesex, Norfolk, Plymouth, Suffolk, Worcester32 min
Nov 13, 5:45 PM ESTSpecial Weather StatementBOXBristol, Plymouth45 min
Nov 13, 5:45 PM ESTSevere Thunderstorm WarningBOXBarnstable, Dukes, Plymouth60 min
Nov 13, 5:47 PM ESTTornado WarningBOXDukes28 min
Nov 13, 5:55 PM ESTSevere Thunderstorm WarningBOXBristol, Essex, Middlesex, Norfolk, Plymouth, Suffolk25 min
Nov 13, 6:02 PM ESTSpecial Marine WarningBOX58 min
Nov 13, 6:07 PM ESTTornado WarningBOXBarnstable, Dukes23 min
Nov 13, 6:13 PM ESTSpecial Marine WarningBOX92 min
Nov 13, 6:27 PM ESTTornado WarningBOXBarnstable15 min
Nov 13, 6:49 PM ESTSpecial Weather StatementBOXBarnstable41 min
Nov 13, 5:02 PM ESTTornado WarningBOXProvidence28 min
Nov 13, 3:46 PM ESTSpecial Weather StatementBOX44 min
Nov 13, 4:41 PM ESTSpecial Weather StatementBOX49 min

Nearby

Severe Thunderstorm Warnings in Rhode Island, 2021Severe Thunderstorm Warnings in Massachusetts, 2021Severe Thunderstorm Warnings in Connecticut, 2021Every severe thunderstorm warning in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.